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| author | Colin Ian King <colin.king@canonical.com> | 2019-09-06 16:30:52 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-12 10:35:52 +0100 |
| commit | 5817eca06747cbb1d46908ac54dfa807f7954945 (patch) | |
| tree | 271915a99705f7a3bd7accaf6f8aad968d36730e /drivers/staging/fbtft/fb_ili9163.c | |
| parent | 0ba4d388d70ed5f6756887ee9184d800110ef23b (diff) | |
| download | linux-stable-5817eca06747cbb1d46908ac54dfa807f7954945.tar.gz linux-stable-5817eca06747cbb1d46908ac54dfa807f7954945.tar.bz2 linux-stable-5817eca06747cbb1d46908ac54dfa807f7954945.zip | |
staging: fbtft: make several arrays static const, makes object smaller
Don't populate the arrays on the stack but instead make them
static const. Makes the object code smaller by 1329 bytes.
Before:
text data bss dec hex filename
5581 1488 64 7133 1bdd drivers/staging/fbtft/fb_hx8340bn.o
5444 1264 0 6708 1a34 drivers/staging/fbtft/fb_hx8347d.o
3581 1360 0 4941 134d drivers/staging/fbtft/fb_ili9163.o
7154 1552 0 8706 2202 drivers/staging/fbtft/fb_ili9320.o
7478 2544 0 10022 2726 drivers/staging/fbtft/fb_ili9325.o
6327 1424 0 7751 1e47 drivers/staging/fbtft/fb_s6d1121.o
6498 1776 0 8274 2052 drivers/staging/fbtft/fb_ssd1289.o
After:
text data bss dec hex filename
5376 1584 64 7024 1b70 drivers/staging/fbtft/fb_hx8340bn.o
5276 1328 0 6604 19cc drivers/staging/fbtft/fb_hx8347d.o
3581 1360 0 4941 134d drivers/staging/fbtft/fb_ili9163.o
6905 1616 0 8521 2149 drivers/staging/fbtft/fb_ili9320.o
7229 2608 0 9837 266d drivers/staging/fbtft/fb_ili9325.o
6030 1488 0 7518 1d5e drivers/staging/fbtft/fb_s6d1121.o
6249 1872 0 8121 1fb9 drivers/staging/fbtft/fb_ssd1289.o
(gcc version 9.2.1, amd64)
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20190906153052.31846-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/fbtft/fb_ili9163.c')
| -rw-r--r-- | drivers/staging/fbtft/fb_ili9163.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/fbtft/fb_ili9163.c b/drivers/staging/fbtft/fb_ili9163.c index fd32376700e2..05648c3ffe47 100644 --- a/drivers/staging/fbtft/fb_ili9163.c +++ b/drivers/staging/fbtft/fb_ili9163.c @@ -195,7 +195,7 @@ static int set_var(struct fbtft_par *par) #define CURVE(num, idx) curves[(num) * par->gamma.num_values + (idx)] static int gamma_adj(struct fbtft_par *par, u32 *curves) { - unsigned long mask[] = { + static const unsigned long mask[] = { 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x1f, 0x3f, 0x0f, 0x0f, 0x7f, 0x1f, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F}; |